T M 9 - 4 9 3 1 - 3 8 1 - 1 4 & P -2
FRAME 29
InstalI Electron Tube Assembly, Clamp, and CRT Support:
WARNING
EIectron tube assembly (1) is breakable. To avoid injury and
damage, handle electron tube assembly (1) carefully.
1.
If electron tube assembly (1) was turned in during task 5, instalI new IDU graticule;
refer to task 13.,
2.
Place CRT support (2) in housing (3); slide CRT support (2) as far to rear as possible.
3. Put electron tube assembly (1) with preformed packing (4) into position in housing
(3). Looking thru eyepiece assembly (5) rotate electron tube (1) so that graticule (5)
is aligned horizontally and vertically.
4. Line up new CRT support (2) with holes in housing (3).
5. Screw in and tighten four machine screws (7), new Iockwashers (8), and flat washers
(9) with flat-tip screwdriver.
6.
WhiIe holding electron tube assembly (1), put on retaining strap (10) and screw in and
tighten two screws (11), new Iockwashers (12), and washers (13) with cross tip
screwdriver.
GO TO FRAME 30
Volume IV
2-204
Pam. 2-8 Task 14
